How much is Beijing Transportation Card for Parks Annual Ticket?

It costs CNY200 for one annual card and you can get it at the ticket office of the Summer Palace, Temple of Heaven, Zhongshan Park, Beihai Park, Jingshan Park, Taoranting Park, Zoo, Fragrant Hills Park, Botanical Garden, Yuyuantan Park, Grand View Garden and Shuangxiu Park.

So does that mean CNY200 covers the entrance fee of those parks stated as well as I can use the credits to use the transportation in beijing??

Yes, it covers those parks and you'd better prepare some cash or the transportation card.